The atom and atom scattering model to control ultracold collisions
Atomic Physics
2012-10-09 v2
Abstract
A modified static exchange model is introduced, it could be useful to control the elastic s-wave scattering length in studying cold-atomic interaction. The theory includes the long-range van der Waals interaction in addition to short-range exchange force. The model is applied on Ps-H system to study the Feshbach resonances e.g. the s-wave elastic phase shifts and the corresponding cross sections at ultracold energies. These are compared with the data obtained using the static exchange model. A very interesting features are observed when we vary the interatomic separation i.e. the strength of dipole-dipole interaction.
Cite
@article{arxiv.1206.5476,
title = {The atom and atom scattering model to control ultracold collisions},
author = {Hasi Ray},
journal= {arXiv preprint arXiv:1206.5476},
year = {2012}
}
Comments
12 pages, 31 figures, 3 tables